CN101615727A - The connector assembly and the building method thereof that in transmission line is installed, use - Google Patents
The connector assembly and the building method thereof that in transmission line is installed, use Download PDFInfo
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- CN101615727A CN101615727A CN200810129229A CN200810129229A CN101615727A CN 101615727 A CN101615727 A CN 101615727A CN 200810129229 A CN200810129229 A CN 200810129229A CN 200810129229 A CN200810129229 A CN 200810129229A CN 101615727 A CN101615727 A CN 101615727A
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Abstract
A kind of being used for installed the connector assembly that uses at transmission line.Elongated steel pipe is set and with the aluminium quill shaft in inserting this pipe, this aluminium sleeve has the press ratio greater than this pipe.The transmission of electricity cable has many outer twisted wires and inserts many interior twisted wires that the central authorities in the sleeve extend.This pipe is carried out mechanical compress and area reduce to handle, make sleeve be extruded, and the aluminum relevant with sleeve filled exist between the interior twisted wire uneven with ratio greater than pipe.This sleeve is also eliminated the stress between twisted wire and the pipe.Aluminum outer tubular body is slidably engaged on the pipe and sleeve that assembles, and in appointed part it is carried out mechanical compress and fix with the outer twisted wire of coiling cable.
Description
Technical field
The present invention relates in general to compressing terminal and compression joint connector assembly.More particularly, the invention discloses a kind of being used for installs terminal conductor and the compression coupling assembling of transition joint conductor and the method that is used to construct this coupling assembling that more typically adopts at transmission line for example.
Background technology
Connector assembly is this area common general knowledge, and these connector assemblies are especially used big current delivery (electric power) cable that is adopted with traditional transmission line and used.This conducting wire is combined with internal layer or " core " of outer and aluminium base recombination line of high temperature aluminum twisted wire and so on and so on usually.Be well known that also this conductor wire core presents sizable longitudinal strength (about 240 kips are (ksi) per square inch), have limited transverse strength (about usually 20ksi) characteristic simultaneously.
In application, expectation is connected to for example follow-up and interconnect cable length with insulation and effective current conduction pattern with the elongated end of the electric power cable of given length.Optionally, the known traditionally connection of another of this current delivery circuit is to be connected to and overhead tower or the relevant insulator string (insulator string) of transmission of electricity supporting construction, and for example known traditionally " terminal " connects.
When setting up above-mentioned any and connect, in the art the common ring pipe that constitutes by steel that also the expectation compression is relevant with connector assembly or tin.The compound core of current delivery circuit is inserted an end of steel cylinder, then this tube is inserted between a pair of heavy compression mould, this tube is carried out area reduce/squeeze operation (, operating under the above pressure of 000psi) 10.The purpose of this operation is with the power transmission mode of expecting with respect to subsequent cables or terminator terminating junctor conductor wire core to be securely fixed in the steel bushing.
The particular problem that exposes in the steel cylinder compression is because after installation and the follow-up tensioning in using, core damages easily or ruptures.Also clear and definite is to expect that in use setting up tensioning for core is clamped to 95% of its specified intensity.Between initial mechanical mould compression period, also must keep core, otherwise can only concentrate on the part of its twisted wire, thereby make core owing to conquassation, indentation or crooked the damage with after-applied tension force in the mode that substantial linear is extended.
Also clear and definite is, because compound core has quite low ductility, therefore require the outer twisted wire of transmission of electricity cable to be loaded before core, otherwise premature failure can take place core.Additional requirement to connector is it must be designed to keep the outer twisted wire of cable not to be damaged, and realizes 95% the specified intensity of expectation of cable.
The example of the wire and cable connector of prior art comprises the U.S. Patent No. 3,384,704 of authorizing Vockroth, and this patent has been instructed a kind of height stretching electric connector that is used to engage stranded cable.The patent of Vockroth comprises outer hoop, and this outer hoop has a pair of taper claw that is arranged into its end separatedly.The core twisted wire of these pawl clamping cables to be to set up the mechanical connection of expectation, is electrically connected to set up on two ends snap into hoop the connector twisted wire of cable subsequently.During crimping, vertical extruding of conduction twisted wire and hoop and pulling core twisted wire and claw close to being right after.
Authorize in the U.S. Patent No. 5,647,046 of Cowen and disclose a kind of another example that supports the wedge termination of aerial cable, this patent comprises the assembling framework with the attached cable that is used to be mounted to supporting construction and slides into two wedges in this framework.This framework also comprises two parallel-plates, and each plate comprises the relative angle-shaped groove of two tapers.Described wedge is similar taper, thereby it can be locked with side plate, and they comprise that also size and structure set the groove that is used for clamping finger alignment cable for.Described wedge can be designed to along the entire contact surface of wedge equably or the cable that coats with the force compresses that changes along this surface.
Summary of the invention
The invention discloses a kind of being used for installs the terminal conductor that more typically adopts and the compression coupling assembling of transition joint conductor at transmission line for example.A kind of method that is used to construct this coupling assembling is also disclosed.
This coupling assembling comprises in the mode between the compound core that is arranged in outer steel pipe and insertion aluminium sleeve insert is set, this aluminium insert has the ductility of increase and the combined characteristic of press ratio (with respect to steel bushing), in case the power misalignment of principal vertical line core (between the compression period of steel pipe), the power misalignment can make connector assembly place tension force following time to produce follow-up inefficacy.This is because the extension characteristics of aluminium insert to a great extent, outside between the pressure mould compression period of steel pipe, redistribute in the space that the aluminium insert produces between heart yearn with the space filling mode, and extruding is eliminated to realize the stress that remains on inner core and the expectation between the reduction length above the end that is circular layout of steel pipe.
As known in the art, the power transmission line cable wrap is drawn together many interior twisted wires of many outer twisted wires and central authorities' extension, and twisted wires were inserted in the aluminium sleeve before the compression molding operation of steel pipe in these.The outer tubular body preferably is made of the power transmission material (for example aluminium) of conduction, and is slidably engaged on this pipe and sleeve that assembles when the pipe that assembles and sleeve are fixed on many cable twisted wires of central authorities.
This outer tubular body structure is a terminal applies, and it comprises the pull ring ring of forging, and this circle ring is used for the extension end of single line cable is connected to for example built on stilts tower or bar.Optionally, the mode that this outer tubular body is used with joint is constructed, and for example is used in the middle span of isolated tower or bar the relative extension end of first cable and second cable is interconnected.
Description of drawings
Fig. 1 is the stereogram of part is olation of the compressing terminal connector of first preferred implementation according to the present invention, the aluminium insert that it shows the steel pipe with end steel loop forge piece that can be attached and is used to insert the opposed end of steel pipe;
Fig. 2 is the follow-up stereogram according to the execution mode of Fig. 1, and further shows the inserted mode of the transmission of electricity cable with outer twisted wire and interior compound core in part exploded perspective view mode, and wherein the aluminium sleeve is arranged in the steel pipe with the end inserted mode;
Fig. 3 is again follow-up stereogram, also with the part is olation show the connector that assembles with the outer tubular body of terminal join dependency in axial end portion insert;
Fig. 4 is the exploded perspective view according to the compression joint connector of a preferred implementation more of the present invention, and it shows the steel pipe of optional structure and a pair of mutually opposed earth's axis to the aluminium sleeve that inserts;
Fig. 5 is the follow-up stereogram according to the execution mode of Fig. 4, wherein said pair of aluminum sleeve is arranged in the steel pipe in the mode that opposed end inserts, and further show the inserted mode that first and second of relevant transmission of electricity cable extends the end with the part is olation, described cable comprises outer twisted wire and the compound core of interior extension again;
Fig. 6 is the follow-up again stereogram with the part is olation of the execution mode of Fig. 4 and Fig. 5, its show the connector that assembles with the outer tubular body of joint join dependency in axial end portion insert;
Fig. 7 is the sectional view of the compressing terminal connector shown in Fig. 3, further shows axial arranged groove line on the steel pipe and is compressed into the mode that the interior circumferentia with the outer tubular body is bonded with each other;
Fig. 8 is the corresponding sectional view of the compression joint connector shown in Fig. 6, and the interconnective end that shows follow-up transmission of electricity cable is fixed on the interior mode of outer tubular body;
Fig. 9 is that the line 9-9 along Fig. 7 and Fig. 8 cuts open the cutaway view of getting, and it shows the sectional view of the compress mode of the end of the arbitrary outer tube of twisted wire (terminal or joint) outside the Pass the phase of selected transmission of electricity cable;
Figure 10 also is that 10-10 along the line cuts open the cutaway view of getting in the terminal of Fig. 7 and Fig. 8 and joint execution mode, shows the core load transmitting portions of arbitrary connector assembly;
Figure 11 cuts open the cutaway view of getting along the line 11-11 in the terminator terminating junctor execution mode of Fig. 7, show the compress mode of terminal outer tubular body on the peak of steel loop forge piece cage structure with the cross section, the area that wherein such cross section has formed expectation reduces and the area compression percentages;
Figure 12 cuts open the cutaway view of getting along the line 12-12 in the terminator terminating junctor execution mode of Fig. 7, with similar with shown in the cutaway view among Figure 11, show the compression of outer tubular body on the groove line that forms, and the area that has formed expectation once more reduces and the area compression percentages;
Figure 13 cuts open the cutaway view of getting along the line 13-13 in the terminator terminating junctor execution mode of Fig. 7, shows the unpressed tube portion of the outer tubular body that is bonded on the steel loop forge piece; And
Figure 14 also is that 14-14 along the line cuts open the cutaway view of getting in the terminal of Fig. 7 and Fig. 8 and joint execution mode, the mode of the aluminium sleeve compresses that shows steel pipe and insertion to the conductor wire core.
Embodiment
The various diagrams of following reference show and are used for the compression coupling assembling that uses at terminal conductor and transition joint conductor.As previously discussed, this joint is connected with terminal and more typically is used in during transmission line installs, and is particularly suitable for using with the composite conductor assembly.As also will describing, the invention also discloses a kind of method of constructing this coupling assembling.
Referring to figs. 1 through 3 and Fig. 7, show a series of diagrams of compressing terminal connector 10 (specifically referring to the complete assemblies among Fig. 3 and Fig. 7) according to the first preferred embodiment of the present invention.Elongated hollow pipe 12 is set, and this pipe has first end 14 and the second end 16, and has polygon (hexagon, the circle etc.) cross sectional shape of expectation.Pipe 12 in this preferred implementation is made of suitable carbon steel material, but also can specify any conductive metallic material of elongation and press ratio to constitute by having.
In this preferred implementation, sleeve 26 is made of suitable aluminum again, but should be understood that also this sleeve also can be made of any conductive metallic material of elongation with other appointments and press ratio (their predetermined value is greater than the corresponding elongation and the press ratio of outer steel pipe 12).Also as shown in the follow-up stereogram of Fig. 2, sleeve 26 is depicted as in the associated end 14 of inserting outer tube 12, thereby sand material 32 (referring again to Fig. 1) remains on the appropriate location with this sleeve.
Referring again to Fig. 2, Fig. 3 and Fig. 7, the transmission of electricity cable is set, it comprises the interior extension twisted wire 36 (compound core in for example also being called as) that the outer twisted wire 34 of a plurality of common spiral types windings and a plurality of spiral types that central authorities extend are twined.In advantageous applications, composite conductor generally includes the high temperature aluminum in the outer twisted wire 34 that is used in winding, and interior extended layer 36 or core are made of aluminium base recombination line.It will also be appreciated that the outer twisted wire 34 of cable and the material structure and the combination of interior twisted wire 36 can change according to application need.
Fig. 3 and shown in Figure 7 and for example, many twisted wires 36 that central authorities extend (compound core in also being called) are inserted in the end 28 of aluminium sleeve 26, for example near the coaxial outer layout end 14 of outer steel pipe 12.At this moment, carry out the mechanical compress operation outside on the steel pipe 12, the inside of outer steel pipe 12 maintains aluminium sleeve 26, and the central authorities of aluminium sleeve 26 are inserted with many twisted wires 36 of extension.Although not shown, it should be understood that the proper compression device is interpreted as and comprise and be used for first and second moulds that outer steel pipe 12 is received in therebetween mutually opposed and cooperates.The mechanical compress device can be suitable for any suitable pressure applications, for example can surpass the occasion of 10,000 pound per square inches (psi), it will also be appreciated that the mechanical compress shaping operation also produces the effect of the entire area that reduces steel pipe 12.
More than central core (interior twisted wire 36) that the inside of outer tube 12, the sleeve 26 that inserts and compound cable is extended carried out general description, below the characteristic of aluminium sleeve 26 during the mechanical compress of pipe 12 is described.Specifically, it is also known that because the material composition of corresponding component that steel pipe 12 has the press ratio littler than aluminum pipe 26.
Therefore, applying compression and area by the outside steel pipe 12 of mould when reducing power, aluminium sleeve 26 is extruded with the ratio greater than the pipe 12 of positive compression, makes any uneven and space between the interior twisted wire 36 of the central extension of aluminum filling relevant with sleeve.In addition, the press ratio that sleeve 26 is increased forms stress and eliminates between interior twisted wire 36 and steel pipe 12, and by the aluminum extruding is surpassed the associated end 14 of pipe 12 and further realizes this stress elimination.
Referring again to the stereogram of Fig. 3 and the cutaway view of Fig. 7, outer tubular body 38 is set, it comprises first end 40, the second end 42 and specifies internal diameter 44.Outer tubular body 38 is made of suitable conductive metallic material, for example preferred aluminium, and this outer tubular body 38 is also called outer terminator terminating junctor body in this embodiment.The internal diameter 44 of tubular body 38 also preferably includes sleeve 44 is set, this sleeve is preferred also constitute by aluminium and the initial assembling of tubular body 38 outside during install in factory.Also show tongue piece (tongue) 46, it typically is the weld part of outer tubular body 38, and also constitute by aluminium and as following concise and to the point as described in as the transmission of electricity terminal.
Length along outer tubular body 38 is applying follow-up mechanical compress operation with the axially spaced position shown in Reference numeral 43,45 and 47.This squeeze operation advances to its end 40 and 42 along the axial length of tubular body 38 usually, to eliminate the stress that in assembly, accumulates, not it should be understood that between axial position 43 and 45, to apply compression stress that this part is corresponding to inserting the inner pipe 12 and the position of sleeve 26.Externally the joining edge of the part that tapers inwardly (referring to the Reference numeral 48 of Fig. 3 and Fig. 7) of tubular body carries out further squeeze operation then, the same with the squeeze operation of position 43,45 and 47, outer tubular body 38 is fixed on around the outer extension twisted wire 34 of composite conducting cable and eliminates stress along assembly.
Refer again among Fig. 7 with the compressing terminal connector that assembles shown in the cross-sectional view, be compressed and the mode of deflection radially outward to be bonded with each other with the relative interior annular surface of outer tubular body 38 with further reference to the axial arranged groove line 20 on the steel pipe 12.This is usually by realizing to pipe 12 axial forces that apply the inside compression of appointment from heavy end pull ring ring 22.
In operation and when the assembling of compressing terminal connector is finished, the jumper terminal (not shown) is connected on the extension tongue piece 46 of outer terminal bodies 38.Unshowned insulator string also links to each other with built on stilts tower or bar (also not shown) at terminal connector place, and prevents that by its insulation characterisitic electric current from entering bar or tower through steel loop forge piece 22.
Therefore, current delivery is from compound cable, by assembly and pass the outer tubular body, finally arrives the jumper terminal of connection by tongue piece.
Following with reference to Fig. 9 to Figure 14, show a series of single sectional view at the axial position of appointment of the compressing terminal connector 10 shown in the sectional view of Fig. 7.Each sectional view of Fig. 9 to 14 also is at shown in the terminator terminating junctor of Fig. 7, should be further understood that the execution mode for Fig. 8 of the follow-up reference that will briefly describe, and Fig. 9,10 and 14 sectional view are suitable for this execution mode.
In succession with reference to Fig. 9 to 14, at first with reference to the cross-sectional view of Fig. 9 with the end of the outer tubular body 38 of Reference numeral 50 expressions, this outer tubular body with compressed format around the relevant outer twisted wire 34 in the outside of compound transmission of electricity cable.Shown in this cross section, the cross-sectional configurations of outer tubular body 38 can be polygon, and hexagon for example also should be understood circular and other structures also are feasible.As also understanding at this cross section, outer tubular body 38 be designed to keep compound connection cable the outer twisted wire 34 of aluminum intensity and further provide necessary transmission of electricity characteristic with from conductor transmission amperage.
The pipe and the combination of conductor are interpreted as that the expectation area that is designed to all have in the limit of setting up reduces and the area compression percentages, and the cross section at this position does not have and anyly tends to make moisture to advance and enter space in the assembly along conductor simultaneously.Expectation be that reduction length on conductor is enough to keep the slippage clamping, when conductor in use be tensioned to its specified intensity 95% the time slippage can take place.By this way, guarantee that connector meets that electric and mechanical performance requires and not needs test each assembly repeatedly.
Following with reference to Figure 10, show another sectional view with Reference numeral 52 expressions, this sectional view is represented the core load transmitting portions of connector assembly.Specifically, this partial design becomes with the prescribed tension surrender or prolongs, thus " loading " core effectively.This tube section must be designed so that also that when applying the load that is defined as specified fracture strength (RBS) to conductor synthetic core (twisted wire 36) produces strain usually on 0.002 to 0.006in/in area, thereby guarantees to load core with high-tension load.Cross section 38 ' with circular in Figure 10 further shows this outer tubular body.
Figure 11 shows the compress mode of outer tubular terminal bodies 38 on the peak cage structure of steel loop forge piece (outer tubular body 12) with Reference numeral 54, and wherein this cross section area of having formed expectation reduces and the area compression percentages.Figure 12 with Reference numeral 56 show outer tubular body 38 steel pipe 12 set up compression on the groove line 20, and its area that has also formed expectation reduces and the area compression percentages.Figure 13 is the sectional view with the unpressed tube portion (referring again to 38 ') that is bonded on the outer tubular body on the base portion with the integrally formed steel loop forge piece 22 of outer steel pipe 12 of Reference numeral 58 expression.
At last, Figure 14 is the sectional view with Reference numeral 60 expression, shows steel pipe 12 and the aluminium sleeve 26 that inserts is compressed to mode on the conductor wire core (referring again to the composite twisted wire 36 that central authorities extend).Connect equally with the compression of setting up between the outer extension twisted wire 34 of terminal tubular body 38 and composite terminal cable outside, manage 12, sleeve 26 and core 36 be designed to have area in the limit of setting up and reduce percentage and area compression percentages to guarantee to compress the mechanical performance that is connected.In addition, the cross section at this position also must not have the space, particularly during mechanical compress and area reduce, makes Guan Buhui crooked or twisted.Reduction length on the core twisted wire 36 also must be enough to keep the clamping to conductor wire core, can slippage thereby be tensioned to 95% o'clock of its specified intensity at cable.
Following with reference to the follow-up stereogram of Fig. 4 to Fig. 6 and the complete assembling sectional view of Fig. 8, show the connector assembly according to second preferred implementation (specifically referring again to Fig. 6 and Fig. 8) with Reference numeral 62 expressions.Assembly 62 is compared with terminator terminating junctor assembly 10 as the compression joint connector, and assembly 62 changes into and being used for now the mode of describing is made the first and second compound terminal interconnection.
Specifically, steel pipe 64 is set once more, it comprises first end 66 and the second end 68, and has the internal diameter 70 of appointment.Pair of aluminum sleeve 72 and 74 are set again, and they are Reference numeral 26 as the aforementioned roughly, makes sleeve pipe 72 and 74 insert in the opposed end 64 and 68 of steel pipes 64.As in first preferred implementation, apply sand grains 66 to help with opposed inserted mode fixed muffle 72 and 74 along the internal diameter 70 of steel pipe 64.
Fig. 5 represents to be positioned at the relative inserted mode in end the pair of aluminum sleeve 72 and 74 of steel pipe 64.Fig. 5 further shows the inserted mode of first compound transmission of electricity cable (referring to outer twisted wire 76 and the central twisted wire 78 that extends) and the second transmission of electricity cable (referring to the twisted wire 82 of outer twisted wire 80 and central authorities' extension) with the part decomposition view.
Referring now to Fig. 6, show the axial end portion of connector in the outer tubular body 84 relevant that assembles and insert with joint connector.The same with terminator terminating junctor body 38 outside corresponding in first preferred implementation, joint connector ectosome 84 is made of metal (being generally aluminium) material, and around the aluminium sleeve 72 that inserts and 74 and the central twisted wire (core) 78 and 82 of the insertion of terminal carry out this joint connector body 38 being applied in advance coaxially on the outer twisted wire 76 or 78 of selected transmission of electricity connector before the initial mechanical compression of outer tube 64 and area reduce to operate.
As among Fig. 5 with among is olation and Fig. 6 with shown in the fit, the sleeve that is generally thin-walled 81 that is made of aluminium is slidably engaged on the transmission of electricity cable (outer twisted wire 80).Between final erecting stage, sleeve 81 slides in the associated end 83 of ectosome 84 and is concordant with this end.
The same with first preferred implementation, thus outer steel pipe 64 is reduced by the mechanical compress area, for example becomes the hexagonal configuration that follow-up compression/area reduces shape from initial circular structure.With respect to outer steel pipe 64, this to the aluminium sleeve 72 that inserts and 74 compression properties with described identical with reference to aluminium sleeve 26 in terminator terminating junctor is constructed, thereby this is filled in the central twisted wire/core 78 and the space that 82 places produce and uneven of the relative extension of associated terminal connector to aluminum casing combination, and further from managing 64 opposed end extruding to eliminate the stress between core and the compressed pipe.
Referring again to Fig. 8, show installation diagram with the cutaway view of compression joint modification 62.Specifically, when connector assembled fully, outer tube 84 slid rearwardly to the appropriate location on the pipe 64 that compresses and sleeve 72 and 74.The same with the outer terminator terminating junctor 38 of first execution mode, 86 and 88 (Fig. 6) locate to take place the additional compression operation at the position, and carry out with the opposed end of axial outward extending mode to pipe 84.Near the terminal tapering part 87 and 89 (being arranged in the opposed end of body 84) that coupling connects body 84 is compressed (marginal portion 48 as the terminal tubular body 38 of above reference first preferred implementation is described) simultaneously in the secondary mechanical operation, with twisted wire 76 outside the Pass the phase that outer tube is respectively fixed to the terminal cable and 80 and elimination along the stress of assembly.
In operation, compression joint connector 62 plays same function with the relevant terminal connector, and has identical performance rate and requirement.Also with described identical about disclosing of first preferred implementation, in use expect during the follow-up tensioning of Chan Shenging be core (i.e. the many lines 78 and 82 of central authorities' winding of extending) the specified intensity of expectation 95%.Also the same with at described in the above description in the cross section of Fig. 7 of terminal compression connector, Fig. 9,10 and 14 above-mentioned cutaway view are also shown in Figure 8, and corresponding above description the with them is incorporated into this by reference.
With above-mentioned the same, a kind of method that is configured to the connector assembly of use in transmission line is installed is disclosed still.This method may further comprise the steps: setting has the elongated hollow tube of selected internal diameter, and this pipe has first end and the second end, and this pipe also is made of first metal material with definite press ratio (for example steel); And at least one sleeve is set, and this sleeve has the selected external diameter of the internal diameter that is not more than described pipe, and this sleeve is made of second metal material (for example aluminium) of press ratio greater than the press ratio of described elongated tubular.
Additional step comprises: with described quill shaft in the internal diameter that inserts described pipe; The transmission of electricity cable is set, and this power transmission line cable wrap is drawn together many outer twisted wires and is extended beyond many interior twisted wires of central authorities' extension of described outer twisted wire; And many cable twisted wires (the single cable in the compressing terminal connector or the opposed a pair of cable in the compression joint connector) that described central authorities are extended are inserted in the described sleeve.Fu Jia step comprises in addition: the described elongated tubular of mechanical compress, make described sleeve be extruded with ratio simultaneously greater than the pipe of this positive compression, and make described second metal material (aluminium) relevant fill the uneven and space that exists between the interior twisted wire that described central authorities extend, and the stress between described interior twisted wire of elimination (core) and the outer tube with described sleeve.Installation step comprises fully: setting has selected internal diameter and has first end and the outer tubular body of the second end, and described outer tubular body is made of conductive metallic material (aluminium); Then described outer tubular body is sliding engaged on the sleeve of described hollow tube and assembling.
Disclose substantially the same with the above description of compression connector assembly, the other additional step of this method comprises: with respect to the described outer tubular body of outer twisted wire mechanical compress of described transmission of electricity cable, and before axially inserting described sleeve, apply sand material along the described internal diameter of described elongated tubular.Other steps comprise: in the terminal compression connector at the selected end of described outer tubular body fixed terminal tongue piece, and the external diameter along the compression steel pipe forms a plurality of axially spaced groove lines, near the selected end formation circle ring described a plurality of isolated groove lines of described pipe.The step that the axial compression steel pipe makes described groove line be compressed and radial expansion engages regularly with the internal diameter against described outer tubular body has been finished assembly method of the present invention.
Described current preferred implementation, be understood that the present invention can otherwise implement within the scope of the appended claims.
List of references
United States Patent (USP)
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Claims (20)
1, a kind of being used for installed the connector assembly that uses at transmission line, and described connector assembly comprises: have the elongated hollow tube of selected internal diameter, this pipe has first end and the second end, and described pipe is made of first metal material with definite press ratio; At least one sleeve, this sleeve has the selected external diameter less than the described internal diameter of described pipe, thereby described sleeve can axially insert and pass described first end and enter in the described pipe, and described sleeve is made of second metal material of press ratio greater than the press ratio of described elongated tubular; The transmission of electricity cable, this power transmission line cable wrap is drawn together many interior twisted wires of many outer twisted wires and central authorities' extension, these interior twisted wires extend beyond described outer twisted wire and insert in the described sleeve, described elongated tubular is subjected to mechanical compress and area reduces to handle, described sleeve is extruded with the ratio greater than described elongated tubular, makes described second metal material relevant with described sleeve eliminate the stress between described interior twisted wire and the described pipe; And have selected internal diameter and have first end and the outer tubular body of the second end, described outer tubular body is made of conductive metallic material and is slidably engaged on the described pipe.
2, connector assembly according to claim 1, wherein, described outer tubular body is made of aluminum.
3, connector assembly according to claim 1, wherein, described outer tubular body also comprises the terminator terminating junctor body, a terminal extends from the selected end of described outer tubular body with tongue piece.
4, connector assembly according to claim 3, wherein, described elongated tubular also comprises a plurality of axially spaced groove lines, makes when the axial compression of described pipe, and the deflection radially outward of described groove line engages regularly with the described internal diameter against described outer tubular body.
5, connector assembly according to claim 4, this connector assembly also comprise extension of selected end and the circle ring outside described outer tubular body from described pipe.
6, connector assembly according to claim 5, wherein, described circle ring also comprises the steel loop forge piece with selected shape and size, it is suitable for transmission line relevant insulator string being installed and engages.
7, connector assembly according to claim 1, this connector assembly also comprises the sand material of the described internal diameter that is applied to described elongated tubular, described sand grains helps to keep described sleeve.
8, connector assembly according to claim 7, wherein, this sand grains has given particle size and hardness, and comprises carbofrax material.
9, connector assembly according to claim 1, wherein, described elongated tubular also comprises the carbon steel material composition, described sleeve pipe also comprises the aluminum composition.
10, connector assembly according to claim 9 wherein, applies the second-compressed shaping operation at least one axial position of described outer tubular body, and twisted wire advances to the end of described outer tubular body outside described transmission of electricity cable described.
11, connector assembly according to claim 10, wherein, described second-compressed shaping operation twisted wire that the described central authorities of described transmission of electricity cable extend and described in form stress relief zone between twisted wire and the relevant described outer tubular body.
12, connector assembly according to claim 1, wherein, the described first end and the second end of described elongated tubular are inserted with a pair of sleeve, insert a pair of transmission of electricity cable of the twisted wire that comprises that first and second central authorities extend in described sleeve.
13, connector assembly according to claim 12, wherein, described outer tubular body also comprises the joint connector body.
14, connector assembly according to claim 13, wherein, around relevant with described first and second cables described outside twisted wire apply the second-compressed operation in described first and second ends of described outer tubular body.
15, a kind of method that is configured to the connector assembly of use in transmission line is installed, said method comprising the steps of: setting has the elongated hollow tube of selected internal diameter, this pipe has first end and the second end, and this pipe is made of first metal material with definite press ratio; At least one sleeve is set, and this sleeve has the selected external diameter less than the described internal diameter of described pipe, and described sleeve is made of second metal material of press ratio greater than the press ratio of described elongated tubular; With described quill shaft in the described internal diameter that inserts described pipe; The transmission of electricity cable is set, and this power transmission line cable wrap is drawn together many interior twisted wires of many outer twisted wires and central authorities' extension, and twisted wires extend beyond described outer twisted wire in these; Many the cable twisted wires that described central authorities are extended are inserted in the described sleeve; The described elongated tubular of mechanical compress, described sleeve are extruded with the ratio greater than the pipe of this positive compression simultaneously, make described second metal material elimination described interior twisted wire relevant with described sleeve and the stress between the described pipe; Setting has selected internal diameter and has first end and the outer tubular body of the second end, and described outer tubular body is made of conductive metallic material; And described outer tubular body is slidably engaged on the described pipe.
16, method according to claim 15, this method is further comprising the steps of: the twisted wire that extends with the described central authorities of eliminating described transmission of electricity cable and described in the mode of stress between twisted wire and the relevant described outer tubular body, along described outer tubular body at the axial position of appointment this outer tubular body of mechanical compress.
17, method according to claim 15, this method is further comprising the steps of: before axially inserting described sleeve, apply sand material along the described internal diameter of described elongated tubular.
18, method according to claim 15, this method is further comprising the steps of: at the selected end of described outer tubular body fixed terminal tongue piece.
19, method according to claim 15, this method is further comprising the steps of: the external diameter along described pipe forms a plurality of axially spaced groove lines, is extended with the circle ring near the selected end described a plurality of isolated groove lines of described pipe.
20, method according to claim 19, this method is further comprising the steps of: the described pipe of axial compression, described groove line engages regularly against the described internal diameter of described outer tubular body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810129229A CN101615727A (en) | 2008-06-23 | 2008-06-23 | The connector assembly and the building method thereof that in transmission line is installed, use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810129229A CN101615727A (en) | 2008-06-23 | 2008-06-23 | The connector assembly and the building method thereof that in transmission line is installed, use |
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| CN101615727A true CN101615727A (en) | 2009-12-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107078415A (en) * | 2014-09-29 | 2017-08-18 | 普利佛马多金属有限责任公司 | Grappling fixture for the conductive cable with polymer substrate composite core |
| CN110462936A (en) * | 2017-03-27 | 2019-11-15 | 古河电气工业株式会社 | Connection structural bodies |
| CN112840511A (en) * | 2018-10-10 | 2021-05-25 | Afl电信有限责任公司 | Modular conductor connector assembly and method of connection |
-
2008
- 2008-06-23 CN CN200810129229A patent/CN101615727A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107078415A (en) * | 2014-09-29 | 2017-08-18 | 普利佛马多金属有限责任公司 | Grappling fixture for the conductive cable with polymer substrate composite core |
| CN107078415B (en) * | 2014-09-29 | 2019-06-04 | 普利佛马多金属有限责任公司 | Anchoring fixture for the conductive cable with polymer substrate composite core |
| CN110462936A (en) * | 2017-03-27 | 2019-11-15 | 古河电气工业株式会社 | Connection structural bodies |
| CN110462936B (en) * | 2017-03-27 | 2021-02-26 | 古河电气工业株式会社 | Connection structure |
| US11183780B2 (en) | 2017-03-27 | 2021-11-23 | Furukawa Electric Co., Ltd. | Connection structure |
| CN112840511A (en) * | 2018-10-10 | 2021-05-25 | Afl电信有限责任公司 | Modular conductor connector assembly and method of connection |
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Application publication date: 20091230 |